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        <h1 id="HTML篇"><a href="#HTML篇" class="headerlink" title="HTML篇"></a>HTML篇</h1><h2 id="如何理解HTML语义化"><a href="#如何理解HTML语义化" class="headerlink" title="如何理解HTML语义化"></a>如何理解HTML语义化</h2><ul>
<li>让人更容易读懂（增加代码可读性）</li>
<li>让搜索引擎更容易读懂（SEO）</li>
</ul>
<h2 id="块状元素-amp-内联元素"><a href="#块状元素-amp-内联元素" class="headerlink" title="块状元素&amp;内联元素"></a>块状元素&amp;内联元素</h2><ul>
<li>display: block/table; 有div h1 h2 ul ol p 等</li>
<li>display: inline/inline-block;有span img input button 等</li>
</ul>
<h1 id="CSS篇"><a href="#CSS篇" class="headerlink" title="CSS篇"></a>CSS篇</h1><h2 id="css布局"><a href="#css布局" class="headerlink" title="css布局"></a>css布局</h2><h3 id="盒子模型的宽度如何计算"><a href="#盒子模型的宽度如何计算" class="headerlink" title="盒子模型的宽度如何计算"></a>盒子模型的宽度如何计算</h3><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">&lt;!-- 如下代码，请问div1的offsetWidth是多大？ --&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">style</span>&gt;</span><span class="undefined"></span></span><br><span class="line"><span class="undefined">    #div1 &#123;</span></span><br><span class="line"><span class="undefined">        width: 100px;</span></span><br><span class="line"><span class="undefined">        padding: 10px;</span></span><br><span class="line"><span class="undefined">        border: 1px solid #ccc;</span></span><br><span class="line"><span class="undefined">        margin: 10px;</span></span><br><span class="line"><span class="undefined">        box-sizing: border-box; // 使offsetWidth等于100px</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="undefined"></span><span class="tag">&lt;/<span class="name">style</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"div1"</span>&gt;</span><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre></td></tr></table></figure>
<ul>
<li>offsetWidth=(内容宽度+内边距+边框)，无外边距</li>
<li>因此为122px</li>
<li>补充：如果让offsetWidth等于100px,该如何做？</li>
</ul>
<h3 id="margin纵向重叠的问题"><a href="#margin纵向重叠的问题" class="headerlink" title="margin纵向重叠的问题"></a>margin纵向重叠的问题</h3><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">&lt;!-- AAA与BBB的距离是多少？ --&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">style</span> <span class="attr">type</span>=<span class="string">"text/css"</span>&gt;</span><span class="undefined"></span></span><br><span class="line"><span class="undefined">    p &#123;</span></span><br><span class="line"><span class="undefined">        font-size: 16px;</span></span><br><span class="line"><span class="undefined">        line-height: 1;</span></span><br><span class="line"><span class="undefined">        margin-top: 10px;</span></span><br><span class="line"><span class="undefined">        margin-bottom: 15px;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="undefined"></span><span class="tag">&lt;/<span class="name">style</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">p</span>&gt;</span>AAA<span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">p</span>&gt;</span><span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">p</span>&gt;</span><span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">p</span>&gt;</span><span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">p</span>&gt;</span>BBB<span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br></pre></td></tr></table></figure>
<ul>
<li>相邻元素的margin-top和margin-bottom会发生重叠</li>
<li>空白内容的<code>&lt;p&gt;&lt;/p&gt;</code>会重叠</li>
</ul>
<h3 id="margin负值的问题"><a href="#margin负值的问题" class="headerlink" title="margin负值的问题"></a>margin负值的问题</h3><ul>
<li>margin-top和margin-left负值，元素向上、向左移动</li>
<li>margin-right负值，右侧元素左移，自身不受影响</li>
<li>margin-bottm负值，下方元素上移，自身不受影响</li>
</ul>
<h3 id="BFC理解和应用"><a href="#BFC理解和应用" class="headerlink" title="BFC理解和应用"></a>BFC理解和应用</h3><ul>
<li>Block format context, 块级格式化上下文</li>
<li>一块独立渲染区域，内部元素的渲染不会影响边界以外的元素</li>
</ul>
<p>形成BFC的常见条件</p>
<ul>
<li>float不是none</li>
<li>position是absolute或fixed</li>
<li>overflow不是visible</li>
<li>display是flex inline-block等</li>
</ul>
<p>BFC常见应用</p>
<ul>
<li>清楚浮动</li>
</ul>
<h3 id="float布局的问题，以及clearfix"><a href="#float布局的问题，以及clearfix" class="headerlink" title="float布局的问题，以及clearfix"></a>float布局的问题，以及clearfix</h3><ol>
<li><p>圣杯布局和双飞翼布局的技术总结</p>
<ul>
<li>使用float布局</li>
<li>两侧使用margin负值，以便和中间内容横向重叠</li>
<li>防止中间内容被两侧覆盖，一个用padding(圣杯)一个用margin(双飞翼)</li>
</ul>
</li>
<li><p>手写clearfix</p>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-class">.clearfix</span><span class="selector-pseudo">:after</span> &#123;</span><br><span class="line">	<span class="attribute">content</span>: <span class="string">''</span>;</span><br><span class="line">    <span class="attribute">display</span>: table;</span><br><span class="line">    <span class="attribute">clear</span>: both;</span><br><span class="line">&#125;</span><br><span class="line"><span class="selector-class">.clearfix</span> &#123;</span><br><span class="line">    *zoom: 1; /* 兼容 IE 低版本 */</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
</ol>
<h3 id="flex画色子"><a href="#flex画色子" class="headerlink" title="flex画色子"></a>flex画色子</h3><p>flex布局常用语法回顾</p>
<ul>
<li>flex-direction</li>
<li>justify-content</li>
<li>align-items</li>
<li>flex-wrap</li>
<li>align-self</li>
</ul>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">style</span>&gt;</span><span class="undefined"></span></span><br><span class="line"><span class="css">    <span class="selector-class">.box</span> &#123;</span></span><br><span class="line"><span class="undefined">        width: 200px;</span></span><br><span class="line"><span class="undefined">        height: 200px;</span></span><br><span class="line"><span class="css">        <span class="selector-tag">border</span>: 2<span class="selector-tag">px</span> <span class="selector-tag">solid</span> <span class="selector-id">#ccc</span>;</span></span><br><span class="line"><span class="undefined">        border-radius: 10px;</span></span><br><span class="line"><span class="undefined">        padding: 20px;</span></span><br><span class="line"><span class="undefined"></span></span><br><span class="line"><span class="undefined">        display: flex;</span></span><br><span class="line"><span class="undefined">        justify-content: space-between;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="css">    <span class="selector-class">.item</span> &#123;</span></span><br><span class="line"><span class="undefined">        display: block;</span></span><br><span class="line"><span class="undefined">        width: 40px;</span></span><br><span class="line"><span class="undefined">        height: 40px;</span></span><br><span class="line"><span class="undefined">        border-radius: 50%;</span></span><br><span class="line"><span class="css">        <span class="selector-tag">background-color</span>: <span class="selector-id">#666</span>;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="css">    <span class="selector-class">.item</span><span class="selector-pseudo">:nth-child(2)</span> &#123;</span></span><br><span class="line"><span class="undefined">        align-self: center;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="css">    <span class="selector-class">.item</span><span class="selector-pseudo">:nth-child(3)</span> &#123;</span></span><br><span class="line"><span class="undefined">        align-self: flex-end;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="undefined"></span><span class="tag">&lt;/<span class="name">style</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">"box"</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">span</span> <span class="attr">class</span>=<span class="string">"item"</span>&gt;</span><span class="tag">&lt;/<span class="name">span</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">span</span> <span class="attr">class</span>=<span class="string">"item"</span>&gt;</span><span class="tag">&lt;/<span class="name">span</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">span</span> <span class="attr">class</span>=<span class="string">"item"</span>&gt;</span><span class="tag">&lt;/<span class="name">span</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre></td></tr></table></figure>
<h2 id="CSS-定位"><a href="#CSS-定位" class="headerlink" title="CSS-定位"></a>CSS-定位</h2><h3 id="absolute和relative分别依据什么定位？"><a href="#absolute和relative分别依据什么定位？" class="headerlink" title="absolute和relative分别依据什么定位？"></a>absolute和relative分别依据什么定位？</h3><ul>
<li><p>relative依据自身定位</p>
</li>
<li><p>absolute依据最近一层的定位元素定位</p>
<blockquote>
<p>定位元素：</p>
<ol>
<li>absolute relative fixed</li>
<li>body</li>
</ol>
</blockquote>
</li>
</ul>
<h3 id="居中对齐有哪些实现方式？"><a href="#居中对齐有哪些实现方式？" class="headerlink" title="居中对齐有哪些实现方式？"></a>居中对齐有哪些实现方式？</h3><ul>
<li><p>水平居中</p>
<ol>
<li>inline元素：text-align: center;</li>
<li>block元素：margin: auto;</li>
<li>absolute元素: left: 50%; + margin-left 负值</li>
</ol>
</li>
<li><p>垂直居中</p>
<ol>
<li>inline元素：line-height 的值等于 height值</li>
<li>absolute元素： top: 50%; + margin-top: 负值</li>
<li>absolute元素：transform: translate(-50%, -50%)</li>
<li>absolute元素:   top,left, bottom, right = 0 + margin: auto</li>
</ol>
</li>
</ul>
<h2 id="CSS-图文样式"><a href="#CSS-图文样式" class="headerlink" title="CSS-图文样式"></a>CSS-图文样式</h2><h3 id="line-height的继承问题"><a href="#line-height的继承问题" class="headerlink" title="line-height的继承问题"></a>line-height的继承问题</h3><ul>
<li><p>写具体数值，如30px, 则继承该值</p>
</li>
<li><p>写比例，如2/1.5，则继承该比例</p>
</li>
<li><p>写百分比，如200%，则继承计算出来的值（考点）</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">style</span> <span class="attr">type</span>=<span class="string">"text/css"</span>&gt;</span><span class="undefined"></span></span><br><span class="line"><span class="undefined">    body &#123;</span></span><br><span class="line"><span class="undefined">        font-size: 20px;</span></span><br><span class="line"><span class="undefined">        line-height: 200%;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="undefined">    p &#123;  // 行高 40px</span></span><br><span class="line"><span class="css">        <span class="selector-tag">background-color</span>: <span class="selector-id">#ccc</span>;</span></span><br><span class="line"><span class="undefined">        font-size: 16px;</span></span><br><span class="line"><span class="undefined">    &#125;</span></span><br><span class="line"><span class="undefined"></span><span class="tag">&lt;/<span class="name">style</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">body</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">p</span>&gt;</span>这是一行文字<span class="tag">&lt;/<span class="name">p</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">body</span>&gt;</span></span><br></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="CSS-响应式"><a href="#CSS-响应式" class="headerlink" title="CSS-响应式"></a>CSS-响应式</h2><h3 id="rem是什么？"><a href="#rem是什么？" class="headerlink" title="rem是什么？"></a>rem是什么？</h3><p><img src="https://i.loli.net/2020/10/21/Zm91Bst62Xzgp4E.png" alt="image-20201021210029950"></p>
<h3 id="如何实现响应式？"><a href="#如何实现响应式？" class="headerlink" title="如何实现响应式？"></a>如何实现响应式？</h3><ol>
<li>media-query 根据不同的屏幕宽度设置根元素font-size</li>
<li>rem 基于根元素的相对单位</li>
</ol>
<figure class="highlight css"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line">@<span class="keyword">media</span> only screen and (max-width: <span class="number">374px</span>) &#123;</span><br><span class="line">    <span class="comment">/* iphone5 或者更小的尺寸，以 iphone5 的宽度（320px）比例设置 font-size */</span></span><br><span class="line">    <span class="selector-tag">html</span> &#123;</span><br><span class="line">        <span class="attribute">font-size</span>: <span class="number">86px</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line">@<span class="keyword">media</span> only screen and (min-width: <span class="number">375px</span>) and (max-width: <span class="number">413px</span>) &#123;</span><br><span class="line">    <span class="comment">/* iphone6/7/8 和 iphone x */</span></span><br><span class="line">    <span class="selector-tag">html</span> &#123;</span><br><span class="line">        <span class="attribute">font-size</span>: <span class="number">100px</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line">@<span class="keyword">media</span> only screen and (min-width: <span class="number">414px</span>) &#123;</span><br><span class="line">    <span class="comment">/* iphone6p 或者更大的尺寸，以 iphone6p 的宽度（414px）比例设置 font-size */</span></span><br><span class="line">    <span class="selector-tag">html</span> &#123;</span><br><span class="line">        <span class="attribute">font-size</span>: <span class="number">110px</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="CSS-响应式-vw-vh"><a href="#CSS-响应式-vw-vh" class="headerlink" title="CSS-响应式-vw/vh"></a>CSS-响应式-vw/vh</h3><ul>
<li>rem的弊端：“阶梯” 性</li>
<li>网页视口尺寸<ul>
<li>window.screen.height // 屏幕高度</li>
<li>window.innerHeight // 网页视口高度</li>
<li>document.body.clientHeight // body 高度</li>
</ul>
</li>
<li>vw/vh<ul>
<li>vh网页视口高度的1/100</li>
<li>vw网页视口宽度的1/100</li>
</ul>
</li>
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                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

</body>
</html>
